From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: [PATCH 3/3] Add timeout feature Date: Fri, 22 Aug 2008 14:16:56 -0400 Message-ID: <20080822181656.GB15469@infradead.org> References: <20080818212856t-sato@mail.jp.nec.com> <20080821132006.9949101c.akpm@linux-foundation.org> Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: axboe@kernel.dk, Takashi Sato , mtk.manpages@googlemail.com, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, hch@infradead.org, dm-devel@redhat.com, viro@ZenIV.linux.org.uk, linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, Oleg Nesterov To: Andrew Morton Return-path: Content-Disposition: inline In-Reply-To: <20080821132006.9949101c.akpm@linux-foundation.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com List-Id: linux-fsdevel.vger.kernel.org On Thu, Aug 21, 2008 at 01:20:06PM -0700, Andrew Morton wrote: > I don't think the changelogs actually explained why this feature is > being added? > > Which userspace tools are expected to send these ioctls? Something in > util-linux? dm-utils? Are patches to those packages planned? Currently the only surspace using freeze and thaw is xfs_freeze from xfsprogs, which would work for various other filesystems that implement ->write_super_lockfs now instead of just XFS with patch 1. The freeze stuff in this third patch isn't and won't be used by xfs_freeze and doesn't make all that much sense (and we already had a lot of previous discussion on this..)